CN1462040A - Low-voltage cable sheath - Google Patents
Low-voltage cable sheath Download PDFInfo
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- CN1462040A CN1462040A CN03138156A CN03138156A CN1462040A CN 1462040 A CN1462040 A CN 1462040A CN 03138156 A CN03138156 A CN 03138156A CN 03138156 A CN03138156 A CN 03138156A CN 1462040 A CN1462040 A CN 1462040A
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- voltage cable
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- 239000000203 mixture Substances 0.000 claims abstract description 34
- 239000004743 Polypropylene Substances 0.000 claims abstract description 19
- -1 polypropylenes Polymers 0.000 claims abstract description 18
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims abstract description 15
- 239000000347 magnesium hydroxide Substances 0.000 claims abstract description 15
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims abstract description 15
- 238000009413 insulation Methods 0.000 claims abstract description 12
- 229920001155 polypropylene Polymers 0.000 claims abstract description 12
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 9
- 239000004416 thermosoftening plastic Substances 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 6
- 239000004698 Polyethylene Substances 0.000 claims abstract description 5
- 229920000573 polyethylene Polymers 0.000 claims abstract description 4
- 210000003953 foreskin Anatomy 0.000 claims description 17
- 238000003825 pressing Methods 0.000 claims description 14
- 229920006124 polyolefin elastomer Polymers 0.000 claims description 9
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 8
- 229920001577 copolymer Polymers 0.000 claims description 7
- 239000012764 mineral filler Substances 0.000 claims description 7
- 229920005606 polypropylene copolymer Polymers 0.000 claims description 7
- 230000002265 prevention Effects 0.000 claims description 7
- 238000009826 distribution Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims description 2
- 238000004079 fireproofing Methods 0.000 claims description 2
- 238000004381 surface treatment Methods 0.000 claims description 2
- 229910052736 halogen Inorganic materials 0.000 abstract description 5
- 150000002367 halogens Chemical class 0.000 abstract description 4
- 229920000642 polymer Polymers 0.000 abstract description 4
- 239000003795 chemical substances by application Substances 0.000 abstract 2
- 238000001125 extrusion Methods 0.000 abstract 2
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract 1
- 239000011707 mineral Substances 0.000 abstract 1
- 230000002195 synergetic effect Effects 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 8
- 230000004888 barrier function Effects 0.000 description 7
- 239000000047 product Substances 0.000 description 4
- 239000002390 adhesive tape Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 239000005038 ethylene vinyl acetate Substances 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 230000026030 halogenation Effects 0.000 description 2
- 238000005658 halogenation reaction Methods 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229920002943 EPDM rubber Polymers 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229920001038 ethylene copolymer Polymers 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
- 239000004711 α-olefin Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0807—Copolymers of ethene with unsaturated hydrocarbons only containing four or more carbon atoms
- C08L23/0815—Copolymers of ethene with unsaturated hydrocarbons only containing four or more carbon atoms with aliphatic 1-olefins containing one carbon-to-carbon double bond
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/14—Copolymers of propene
- C08L23/142—Copolymers of propene at least partially crystalline copolymers of propene with other olefins
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/16—Ethene-propene or ethene-propene-diene copolymers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
- H01B3/441—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from alkenes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
- C08L2203/202—Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2314/00—Polymer mixtures characterised by way of preparation
- C08L2314/06—Metallocene or single site catalysts
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Organic Insulating Materials (AREA)
- Inorganic Insulating Materials (AREA)
- Insulated Conductors (AREA)
Abstract
''Covering for low voltage cables'', class C, whose service temperature is between -40 DEG C and +125 DEG C, for cars, aviation, boats, with reduced and/or ultrafine insulation, free of halogens and of polymer composition. The covering is made using a polymer thermoplastic-based (non-reticulated) material formulated as a blend of: a rigid phase, a blend of different polypropylenes with nucleant agents, of an adequate fluidity for extrusion; an elastic phase, a blend of different polyethylenes of an adequate fluidity for extrusion, of densities >0.906 g/cm<3>; and a fireproof mineral load, Magnesium Hydroxide, with synergic agents.
Description
Technical field
Purpose of the present invention, as described in this detailed report, form by " low-voltage cable foreskin ", especially for C class cable, such cable is used for automobile, aviation, boats and ships etc., and it has simplification thermoplastic insulation (insulating barrier wall thickness: 0.25 millimeter) and/or ultra-fine insulating barrier (insulating barrier wall thickness: 0.20 millimeter).The serviceability temperature of this class cable is-40 ℃～+ 125 ℃, and its not halogen-containing and heavy metal, is environmentally friendly.
Particularly, above-mentioned cable sheathing has multicore cable and primary insulation layer (individual layer foreskin), it is characterized in that ((density level is 1.4 gram per centimeters to its remarkable mechanical performance although contain the fire-proof packing of high-load
3)), high-heat performance, the excellent properties of (40 ℃) and fire resistance under the low temperature (by ISO 6722 test and vertical checkouts).
Background technology
Employing contains the PVC of halogenation fire proofing material and PE/PP product and is substituted by halogen-containing scheme not as the scheme of the primary insulation layer of automobile cable, and this is because the recycling influence that environment is brought of halogenation product.In the near future, this trend in the automobile market may extend to other products market.
The halogen prescription that is generally used for producing automobile cable primary insulation layer is based on polypropylene or poly, mixes mineral filler as fire retardant (being generally hydrated alumina or magnesium hydroxide).
For obtaining good flame retardancy, adopt very a high proportion of fire prevention mineral filler (account for the 42%-70% of product total weight, decide) on combustion testing to be done.
A big problem that adopts this type of prescription is exactly how to obtain mechanical performance such as good stretching, elongation and low-temperature impact and suitable chemical resistance and excellent thermal stabilitys, or even when described cable under the working temperature lower than cable aging condition with (adhesive tape compatibility test) when adhesive tape contacts.
Patent EP-A-859375 has described a kind of automotive ignition cable of bilayer, has promptly comprised primary insulation layer (covering a layer of conductor) that adopts polyolefin to make and the cover layer of being made by the siloxanes byproduct.
Patent DE-A-19632153 relates to the application that the halogen-free thermoplastic blend is used for cable.These blends are based on the magnesium hydroxide of polypropylene, ethylene vinyl acetate (EVA) and/or copolymer and conduct fire prevention mineral filler.
Patent EP-A-893801 and EP-A-893802 relate to the double-deck cable that is used for electric power transfer, transfer of data or combines these two kinds of functions.Described two-layer at least one deck have improved machinery (particularly extension at break) performance and electrical property, it is based on the halogen-free thermoplastic material.
Patent US-A-5.246.783 described contain at least a based on C
3-C
20The cable of the polymer primary insulation material of the ethylene copolymer of alpha-olefin.
Patent WO-A-96/23311 relates to the double-deck thermoplasticity cable of the low pressure that is applicable to high electric current.Its primary insulation layer is designed to be lower than 70 ℃ serviceability temperature, make based on polyethylene with as the carbon black of additive, and its cover layer is designed to maximum serviceability temperature is 90 ℃, makes based on thermoplastic and high-elastic (PP/EPR, PP/EPDM two-phase blend) with as the carbon black of additive.
Neither one has comprised thermoplasticity prescription not halogen-containing and heavy metal (environmental friendliness) in these precedents, and such prescription is suitable for making the simplification insulating barrier (insulating barrier wall thickness: 0.25 millimeter) and/or the ultra-fine insulating barrier (insulating barrier wall thickness: 0.20 millimeter) of the C class low-voltage cable that is used for automobile (serviceability temperature-40 ℃～+ 125 ℃), and it is characterized in that density is 1.4 gram per centimeters
3, have good stretching, elongation and a low-temperature impact resistance mechanical performance, chemicals for automobile is had suitable chemical-resistance and remarkable thermal stability, can for example relate to the test relevant by desired test with the adhesive tape compatibility.
Summary of the invention
The present invention relates to the low-voltage cable foreskin based on thermoplastic, its mixture by following material is prepared:
1) rigidity phase, promptly having can be for the various polypropylene of enough flowabilities of extruding and the blend of nucleator
2) elasticity phase, promptly having can be for enough flowabilities, the density＞0.905 gram per centimeter extruded
3Various poly blend
3) contain the fire prevention mineral filler (magnesium hydroxide) of synergist.
The rigidity that this mixture is characterised in that 50-80 part mutually and the elasticity of 50-20 part mutually.
The composition of rigidity phase constitutes based on following blend:
A) contain the anti-HI high impact polypropylene copolymer (230 ℃/2.16kg＞1.5g/10min of MFR of nucleator, tensile modulus of elasticity＞1000MPa and the hot strength＞20MPa under elastic limit, press ISO 527/1+2 and measure, ISO 306 mensuration press in vicat temperature＞125 ℃); With
B) random polypropylene of HMW (230 ℃/2.16kg＞1.5g/10min of MFR, tensile modulus of elasticity＞800MPa and the hot strength＞20MPa under elastic limit press ISO527/1+2 and measure, and ISO 306 mensuration press in vicat temperature＞125 ℃).
A) and b) form blend to obtain the balance between resistance to low temperature (40 ℃) and the friction resistant performance with the ratio of 50/50-90/10.
The composition of rigidity phase constitutes based on following blend:
C) polyvinyl resin (190 ℃/2.16Kg＞0.5g/10min of MFR of the anti-HI high impact copolymer reinforcement of INSITE production, tensile yield＞10MPa, and ultimate elongation＞500% press ASTMD-882MPa and measure, Vicat softening point＞100 ℃ are pressed ISO 306 and are measured) and
D) the INSITE polyolefin elastomer of producing (190 ℃/2.16Kg＞0.5g/10min of MFR, tensile yield＞7MPa, and ultimate elongation＞500% press ASTM D-882MPa and measure, and ISO 306 mensuration are pressed in Vicat softening point＞70 ℃).
C) and d) ratio with 50/50-90/10 forms blend, to obtain the balance between cold tolerance (40 ℃) and the friction resistant performance.
Require the fire prevention mineral filler can pass through various combustion testings, consider the polymer phase-change temperature during rigidity is mutually, magnesium hydroxide is adopted in suggestion, and its distribution of particles is as follows:
d10：0.50-0.80μm
d50：1.40-1.80μm
d90：2.80-4.80μm
Specific area is 4.0-6.0m
2/ g.
These features with need combine to the magnesium hydroxide surface-treated, can improve the percentage elongation that its fire prevention feature and acquisition are made us accepting.
Primary insulation layer thickness (0.20-0.25 millimeter) can be optimized fire protecting performance, but combustion testing is strict (90 °) very, based on this reason, minimum (determining by experience) by the required magnesium hydroxide of this test is the 55%-70% of prescription total weight, and prerequisite is that the 0.5%-2% of prescription total weight is the EVA (70% acetate) that adds as synergist.
All these guide and give us following prescription:
Anti-HI high impact polypropylene copolymer 90-50＞7.0%-28.0%
Random polypropylene 10-50＞7.0%-28.0%
Strengthen polyvinyl resin 50-10＞7.0%-17.0%
Polyolefin elastomer 50-10＞7.0%-17.0%
Magnesium hydroxide 55%-70%
EVA700 0.5％-2.0％
Irganox?1010 1.0％-5.0％
Irganox?MD?1024 0.1％-0.5％
Embodiment
Low-voltage cable foreskin of the present invention is characterised in that it has simplification and/or ultra-fine primary insulation layer based on thermoplastic, thermoplastic is made into the mixture of following material: the rigidity phase, and promptly having can be for the various polypropylene of enough flowabilities of extruding and the blend of nucleator; The elasticity phase, promptly having can be for enough flowabilities, the density＞0.906 gram per centimeter extruded
3Various poly blend; With the fire prevention mineral filler magnesium hydroxide that contains synergist.
Rigidity is a kind of blend mutually, by the anti-HI high impact polypropylene copolymer (230 ℃/2.16kg＞1.5g/10min of MFR that contains nucleator, tensile modulus of elasticity＞1000MPa and the hot strength＞20MPa under elastic limit, pressing ISO 527/1+2 measures, vicat temperature＞125 ℃, pressing ISO 306 measures) and the random polypropylene (230 ℃/2.16kg＞1.5g/10min of MFR of HMW, tensile modulus of elasticity＞800MPa and the hot strength＞20MPa under elastic limit, pressing ISO 527/1+2 measures, vicat temperature＞125 ℃, pressing ISO306 measures) form, wherein the ratio of PP copolymer/random PP is 50/50-90/10.
The elasticity phase is characterised in that it is a kind of blend, this blend strengthens polyvinyl resin (190 ℃/2.16Kg＞0.5g/10min of MFR by the anti-HI high impact copolymer that INSITE produces, tensile yield＞10MPa, and ultimate elongation＞500%, pressing ASTM D-882MPa measures, Vicat softening point＞100 ℃, pressing ISO 306 measures) and (MFR190 ℃/2.16Kg＞0.5g/10min of the polyolefin elastomer of INSITE production, tensile yield＞7MPa, and ultimate elongation＞500% is pressed ASTM D-882MPa and is measured, Vicat softening point＞70 ℃, pressing ISO 306 measures) to form, the ratio that wherein strengthens polyethylene/polyolefin elastomer is 50/50-10/90.
Fireproof system is based on magnesium hydroxide, has following distribution of particles:
d10：0.50-0.80μm
d50：1.40-1.80μm
d90：2.80-4.80μm
Its specific area is 4.0-6.0m
2/ g, and carry out surface treatment, this processing can improve its fire protecting performance and obtain the percentage elongation that can make us accepting, and the ratio of its adding is the 55%-70% of prescription total weight.
The thermoplasticity prescription that described primary insulation layer is corresponding following:
Anti-HI high impact polypropylene copolymer 70＞25%
Random polypropylene 30＞25%
Strengthen polyvinyl resin 40＞11.2%
Polyolefin elastomer 60＞11.2%
Magnesium hydroxide 60%
EVA700 1％
Irganox?1010 2.5％
Irganox?MD?1024 0.3％
Expressed notion has obtained establishment, below is a cover claim, sums up the new feature that we wish to obtain patent protection with this:
Claims (12)
1.-be used for " the low-voltage cable foreskin " of automobile, aviation, boats and ships, it is characterized in that it has simplification and/or ultra-fine primary insulation layer based on thermoplastic, thermoplastic is made into the mixture of following material: the rigidity phase, and it is that have can be for the various polypropylene of enough flowabilities of extruding and the blend of nucleator; The elasticity phase, it is that have can be for enough flowabilities, the density＞0.906 gram per centimeter extruded
3Various poly blend; With the fire prevention mineral filler magnesium hydroxide that contains synergist.
2.-" the low-voltage cable foreskin " of above claim is characterized in that wherein the ratio of rigidity phase is 50-80, the ratio of elasticity phase is 50-20.
3. " the low-voltage cable foreskin " of claim 1 is characterized in that its rigidity is 72/28 with elasticity ratio mutually.
4. " the low-voltage cable foreskin " of claim 1, described rigidity phase is characterised in that it is a kind of blend, this blend is by (MFR230 ℃/2.16kg＞1.5g/10min of the anti-HI high impact polypropylene copolymer that contains nucleator, tensile modulus of elasticity＞1000MPa, and the hot strength＞20MPa under elastic limit, pressing ISO 527/1+2 measures, vicat temperature＞125 ℃, pressing ISO306 measures) and the random polypropylene (230 ℃/2.16kg＞1.5g/10min of MFR of HMW, tensile modulus of elasticity＞800MPa and the hot strength＞20MPa under elastic limit, pressing ISO527/1+2 measures, vicat temperature＞125 ℃, pressing ISO 306 measures) form, wherein the ratio of PP copolymer/random PP is 50/50-90/10.
5. " the low-voltage cable foreskin " of claim 4, described rigidity phase is characterised in that it is a kind of blend, this blend is formed in 70/30 ratio by the random polypropylene of anti-HI high impact polypropylene copolymer that contains nucleator and HMW.
6. " the low-voltage cable foreskin " of claim 1, described elasticity phase is characterised in that it is a kind of blend, this blend strengthens polyvinyl resin (190 ℃/2.16Kg＞0.5g/10min of MFR by the anti-HI high impact copolymer that INSITE produces, tensile yield＞10MPa, and ultimate elongation＞500%, pressing ASTM D-882MPa measures, Vicat softening point＞100 ℃, pressing ISO 306 measures) and the polyolefin elastomer (190 ℃/2.16Kg＞0.5g/10min of MFR of INSITE production, tensile yield＞7MPa, and ultimate elongation＞500%, pressing ASTM D-882MPa measures, Vicat softening point＞70 ℃ are pressed ISO 306 and are measured) to form, the ratio that wherein strengthens polyethylene/polyolefin elastomer is 50/50-10/90.
7. " the low-voltage cable foreskin " of claim 6, described elasticity phase is characterised in that it is a kind of blend, polyvinyl resin that this blend is strengthened by anti-HI high impact copolymer and polyolefin elastomer form in 40/60 ratio.
8. " the low-voltage cable foreskin " of claim 1 is characterized in that, its fireproof system is based on magnesium hydroxide, has following distribution of particles:
d10：0.50-0.80μm
d50：1.40-1.80μm
d90：2.80-4.80μm
Its specific area is 4.0-6.0m
2/ g, and carried out surface treatment, this processing can improve its fire protecting performance and obtain the percentage elongation that can make us accepting, and the ratio of its adding is the 55%-70% of prescription total weight.
9. " the low-voltage cable foreskin " of claim 8 is characterized in that the ratio of magnesium hydroxide is 60% of prescription total weight.
10.-" the low-voltage cable foreskin " that aforesaid right requires, the ratio that it is characterized in that being used as the EVA (70% acetate) of synergist in fire proofing material is the 0.5%-2% of prescription total weight.
11. " the low-voltage cable foreskin " of claim 10, the ratio that it is characterized in that EVA are to account for 1% of prescription total weight.
12. " the low-voltage cable foreskin " of claim 1 is characterized in that the primary insulation layer corresponding to following thermoplasticity prescription:
Anti-HI high impact polypropylene copolymer 70＞25%
Random polypropylene 30＞25%
Strengthen polyvinyl resin 40＞11.2%
Polyolefin elastomer 60＞11.2%
Magnesium hydroxide 60%
EVA700 1％
Irganox?1010 2.5％
Irganox?MD?1024 0.3％
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP02380109.5 | 2002-05-27 | ||
| EP02380109A EP1367606A1 (en) | 2002-05-27 | 2002-05-27 | Covering for low voltage cables |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1462040A true CN1462040A (en) | 2003-12-17 |
Family
ID=29414843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN03138156A Pending CN1462040A (en) | 2002-05-27 | 2003-05-27 | Low-voltage cable sheath |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US20030225198A1 (en) |
| EP (1) | EP1367606A1 (en) |
| JP (1) | JP2004006355A (en) |
| CN (1) | CN1462040A (en) |
| CZ (1) | CZ20031385A3 (en) |
| HU (1) | HUP0301426A3 (en) |
| LT (1) | LT2003045A (en) |
| MA (1) | MA25970A1 (en) |
| MX (1) | MXPA03004616A (en) |
| PL (1) | PL360333A1 (en) |
| SK (1) | SK6102003A3 (en) |
| TN (1) | TNSN03021A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106463207A (en) * | 2014-02-28 | 2017-02-22 | 普睿司曼股份公司 | Power cables with strength elements |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100120177A (en) * | 2008-01-30 | 2010-11-12 | 다우 글로벌 테크놀로지스 인크. | Thermoplastic halogen-free flame retardant formulations |
| US20100319960A1 (en) * | 2008-02-21 | 2010-12-23 | Dow Global Technologies Inc. | Halogen-free flame retardant formulations |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4532280A (en) * | 1984-06-11 | 1985-07-30 | New Japan Chemical Co., Ltd. | Crystalline polyolefin-type resin compositions |
| US5418272A (en) * | 1991-12-10 | 1995-05-23 | Nippon Petrochemicals Company, Limited | Abrasion-resistant flame-retardant composition |
| US5683818A (en) * | 1993-05-04 | 1997-11-04 | Kawasaki Chemical Holding Co., Inc. | Method for improving the friction and wear properties of a polyamide and polyproyplene blend |
| US5561185A (en) * | 1993-11-12 | 1996-10-01 | The Furukawa Electric Co., Ltd. | Fire-retardant resin composition and a covered electric wire |
| US5721314A (en) * | 1993-12-07 | 1998-02-24 | E. I. Du Pont De Nemours And Company | Thermoformable thermoplastic polymer alloy compositions |
| CN1111551C (en) * | 1994-04-20 | 2003-06-18 | 陶氏化学公司 | Substantially linear ethylene polymers of silane-crosslinkable and uses thereof |
| US6376035B1 (en) * | 1996-12-05 | 2002-04-23 | Pactiv Corporation | Zipper fins for plastic bags |
| JP3331925B2 (en) * | 1997-03-31 | 2002-10-07 | 住友電装株式会社 | Abrasion-resistant flame-retardant resin composition, method for producing the same, and insulated wire |
| JP2001511582A (en) * | 1997-07-23 | 2001-08-14 | ピレリー・カビ・エ・システミ・ソチエタ・ペル・アツィオーニ | Low smoke self-extinguishing cable and flame retardant composition used therefor |
| CA2296306C (en) * | 1999-01-21 | 2003-09-23 | Mima Films S.C.A. | Low-noise stretch film |
-
2002
- 2002-05-27 EP EP02380109A patent/EP1367606A1/en not_active Withdrawn
-
2003
- 2003-04-29 MA MA27130A patent/MA25970A1/en unknown
- 2003-04-30 TN TNTNSN03021A patent/TNSN03021A1/en unknown
- 2003-04-30 US US10/425,669 patent/US20030225198A1/en not_active Abandoned
- 2003-05-14 LT LT2003045A patent/LT2003045A/en not_active Application Discontinuation
- 2003-05-16 JP JP2003138145A patent/JP2004006355A/en active Pending
- 2003-05-19 CZ CZ20031385A patent/CZ20031385A3/en unknown
- 2003-05-21 SK SK610-2003A patent/SK6102003A3/en unknown
- 2003-05-26 MX MXPA03004616A patent/MXPA03004616A/en unknown
- 2003-05-26 HU HU0301426A patent/HUP0301426A3/en unknown
- 2003-05-26 PL PL03360333A patent/PL360333A1/en not_active Application Discontinuation
- 2003-05-27 CN CN03138156A patent/CN1462040A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106463207A (en) * | 2014-02-28 | 2017-02-22 | 普睿司曼股份公司 | Power cables with strength elements |
| CN106463207B (en) * | 2014-02-28 | 2018-04-24 | 普睿司曼股份公司 | Power cable with strength member |
| US10109392B2 (en) | 2014-02-28 | 2018-10-23 | Prysmian S.P.A. | Electrical cables with strength elements |
Also Published As
| Publication number | Publication date |
|---|---|
| HUP0301426A3 (en) | 2004-06-28 |
| LT2003045A (en) | 2003-12-29 |
| US20030225198A1 (en) | 2003-12-04 |
| PL360333A1 (en) | 2003-12-01 |
| MA25970A1 (en) | 2003-12-31 |
| SK6102003A3 (en) | 2004-03-02 |
| JP2004006355A (en) | 2004-01-08 |
| CZ20031385A3 (en) | 2004-01-14 |
| MXPA03004616A (en) | 2003-12-02 |
| HU0301426D0 (en) | 2003-09-29 |
| HUP0301426A2 (en) | 2003-10-28 |
| EP1367606A1 (en) | 2003-12-03 |
| TNSN03021A1 (en) | 2005-04-08 |
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